//===================================================================================
// Microsoft patterns & practices
// Composite Application Guidance for Windows Presentation Foundation and Silverlight
//===================================================================================
// Copyright (c) Microsoft Corporation.  All rights reserved.
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE.
//===================================================================================
// The example companies, organizations, products, domain names,
// e-mail addresses, logos, people, places, and events depicted
// herein are fictitious.  No association with any real company,
// organization, product, domain name, email address, logo, person,
// places, or events is intended or should be inferred.
//===================================================================================
using System;
using System.Windows;
using Windows.UI.Core;
using Windows.UI.Xaml;

namespace Microsoft.Practices.Prism.Events
{
	/// <summary>
	/// Wraps the Application Dispatcher.
	/// </summary>
	public class DefaultDispatcher : IDispatcherFacade
	{
		/// <summary>
		/// Forwards the BeginInvoke to the current application's <see cref="Dispatcher"/>.
		/// </summary>
		/// <param name="method">Method to be invoked.</param>
		/// <param name="arg">Arguments to pass to the invoked method.</param>
		public void BeginInvoke(Delegate method, object arg)
		{
			if (Application.Current != null)
			{
				var handler = new DispatchedHandler(() => method.DynamicInvoke(arg));
				Window.Current.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, handler);
			}
		}
	}
}